Guard for rubber mills and like machines



L. GAISMAN.

Dec. 19, 19-22. L 1,439,544.,

GUARD FOR RUBBER MILLS AND LIKE MACHINES.

FILED MAR.2|. 1922.

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Patented Dec. 19, 1922.

LUCIEN GAISMAN, OF VVOODLEY, STOCKPORT, ENGLAND. I

GUARD FOR RUBBER MTLLS AN D LIKE MACHINES.

Application filed March 21, 1922. Serial No. 545,578.

To all whom it may concern Be it known that I, LUOIEN GAISMAN, a citizen of the Confederation of Switzerland, and a resident of W oodley, Stockport, in the county of Chester, England, have invented certain new and useful Improvements in Guards for Rubber Mills and like Machines, of which the following is a specification.

This invention has reference to guards for rubber mills and like machines, and has for its object to provide a guard of simple construction and arrangement which, while in no way interfering with the freedom of the operative when feeding material to the rolls of the machine, will effectually prevent his hands from being caught between the rolls. A further object of the invention is to provide a guard which can be readily adjusted to permit the passage of any desired thickness of material and to suit the height of the v operative.

A guard according to the invention comprises a guard member arranged stationarily at an appropriate inclination and with its lower edge at a suitable distance above the roll so that while not interfering with the feeding of the material and the view of the operative, and permitting the passage of a comparatively large thickness of material between its lower edge and the roll, and also serving as a shoot when the material is initially fed over the top of it, the guard member prevents the operative from passing his hands between its lower edge and the roll to such an extent around the latter as to endanger their being caught in the nip of the rolls.

The guard member is preferablv adjustable as to its inclination to suit the height of the operative, and also adjustable as to the distance of its lower edge from the periphcry of the roll, suitable means being provided for clamping the guard member in the desired adjusted position so that in opera tion it is stationary and does not tilt or pivot.

In the accompanying drawing, Fig. 1 is a transverse section of part of a rubber mill fitted with one arrangement of guard in accordance with the invention, Fig. 2 is a like view of one of the guards, and Fig. 3 is a plan and Fig. 1 an end view of Fig. 2.

Referring to the drawings, each guard comprises a guard member 7 arranged longitudinally of and above the roll 12 which it guards. The guard member, which may conveniently consist of a plate of aluminium but may be of any other suitable material, is pivoted at its ends at 9 in slides 23 which are mounted and vertically adjustable, by means of screws 24: or otherwise suitably, in guide brackets 25 mounted on the frame caps 11. The guard member is provided at its ends with lugs or arms 26 which are furnished with clamping bolts 27 the shanks of which pass through slots 28 in the slides 23.

By adjustment of the slides 23, the distance of the lower edge 13 of the guard member above the roll can be varied as required to permit the passage of any desired normal thickness between its lower edge 13 and the roll 12, and by adjustment of the guard about its pivots 9 it can be set at any required inclination to suit the height of the operative or otherwise and be then clamped by thebolts 27.

lWith this arrangement, the guard member is stationary in operation and can be set so that while permitting the passage of a comparatively large thickness of material between its lower edge 13 and the roll 12, it prevents the operative from passing his hands between its lower edge and the roll to such an extent as to endanger their being caught in the nip of the rolls.

What I claim as my invention and desire to secure byLetters Patent is z- 1. In a rubber mill or like machine, the combination with the rolls and a supporting frame, of a guard member for said rolls disposed adjacent one of the rolls and spacedtherefrom an amount to permit the passage of a desired thickness of material, but not the hands of the operative, to the nip of the rolls, means for supporting said guard member, means for adjusting its spacing from the roll, means for adjusting the inclination of the guard member, and means for clamping the guard member stationary any adjusted position, a guard member pivin any desired adjusted spaced and inclined otally mounted in said slides, means for an- 10 positions. gularly adjusting said guard member about 2. In a rubber mill, the combination With its pivots and clamping it in any desired the rolls and a supporting frame, of guide adjusted position. brackets mounted on said frame, slides In Witness whereof I have hereunto set adjustable in said guide brackets, means for my hand.

adjusting said slides and clamping same in LUCIEN GAISMAN. 

